Anus speculum

Abstract

The utility model provides an anus speculum which comprises a speculum main body and a lighting assembly, the speculum main body is made of transparent materials, the speculum main body is of a sleeve-shaped structure with an opening in one end, and an operation channel is formed in the side wall of the speculum main body; the lighting assembly comprises a plurality of light-emitting parts which are evenly distributed on the inner wall of the speculum body. According to the anal speculum provided by the embodiment of the utility model, the speculum main body is made of the transparent material, so that a doctor can better observe the inner wall of the rectum, and the inner wall of the rectum can be illuminated in multiple directions through the arranged light-emitting piece. Therefore, not only is a good surgical field provided for doctors, but also the surgical process is clearer and visible, so that the surgical efficiency and the surgical safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an anoscope. Background Art

[0002] At present, in the field of medical surgery, anoscopes are commonly used instruments for examining the internal conditions of the anus.

[0003] Existing anoscopes still face some challenges in actual operation. Among them, the most prominent problem is that it is difficult to comprehensively and accurately display the lesion site during the examination, which brings certain difficulties to doctors' diagnosis.

[0004] Specifically, due to the complex physiological structure of the anus and rectum, the lesion site may be hidden in the blind spot of the visual field or blocked by other tissues, making it difficult for the anoscope to capture clear images during operation. In addition, traditional anoscopes lack sufficient lighting and magnification functions, which also limit doctors' ability to observe subtle lesions. These problems not only increase the risk of misdiagnosis and missed diagnosis, but also may affect the formulation of treatment plans and the prognosis of patients. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide an anoscope.

[0006] The utility model provides the following technical solutions:

[0007] An embodiment of the present application provides an anoscope, including an anoscope main body and a lighting assembly. The anoscope main body is made of a transparent material and is in the shape of a sleeve structure with one end open. A surgical channel is provided on the side wall of the anoscope main body. The lighting assembly includes a plurality of light-emitting members, and the plurality of light-emitting members are evenly distributed on the inner wall of the anoscope main body.

[0008] In one embodiment, the anoscope further includes a cover plate, and the cover plate is detachably arranged at the surgical channel to block or open the surgical channel.

[0009] In one embodiment, a first handle is fixedly arranged on the cover plate, and the first handle is an L-shaped plate body structure.

[0010] In one embodiment, a first through hole is provided at one end of the first handle away from the cover plate.

[0011] In one embodiment, a sliding groove is provided on the inner wall at the surgical channel, and a guide rail slidably matched with the sliding groove is provided on the cover plate; or, a sliding groove is provided on the cover plate, and a guide rail slidably matched with the sliding groove is provided on the inner wall at the surgical channel.

[0012] In one embodiment, the two ends of the speculum body are a first end and a second end respectively. The opening of the speculum body is located on the second end, and a conical guide block is fixedly arranged on the first end.

[0013] In one embodiment, the interior of the speculum body has a cylindrical first chamber, and a second chamber is arranged in the conical guide block. The second chamber is conical, and the large-diameter end of the second chamber communicates with the first chamber.

[0014] In one embodiment, a limiting ring is arranged on the end face at the opening of the speculum body, and the plane where the outer wall of the limiting ring is located forms an angle with the axis of the speculum body.

[0015] In one embodiment, a second handle is arranged on the limiting ring, and a second through hole is fixedly arranged at one end of the second handle away from the limiting ring.

[0016] In one embodiment, more than two second handles are provided, and the more than two second handles are circumferentially and uniformly arranged on the limiting ring around the axis of the speculum body. And / or, the lighting assembly further includes an adjustment switch, the adjustment switch is electrically connected to the light-emitting member, and the adjustment switch is used to control the opening and closing and brightness of the light-emitting member.

[0017] The embodiments of the present utility model have the following advantages:

[0018] The speculum body is made of a transparent material, which enables the doctor to better observe the inner wall of the rectum. With the provided light-emitting member, the inner wall of the rectum can be illuminated in multiple directions. This not only provides a good surgical field of view for the doctor, but also makes the surgical process more clearly visible, thereby improving the surgical efficiency and surgical safety.

[0019] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 Shows a structural schematic diagram of a perspective view provided by one of the embodiments of an anoscope provided by the embodiments of the present application;

[0022] Figure 2Shows a schematic structural diagram of a two - perspective view provided by one embodiment of an anoscope provided by an embodiment of the present application;

[0023] Figure 3 Shows a schematic structural diagram of a three - perspective view provided by one embodiment of an anoscope provided by an embodiment of the present application;

[0024] Figure 4 Shows Figure 3 a cross - sectional view taken along the A - A direction in

[0025] Description of main element symbols:

[0026] 100 - Anoscope main body; 110 - Surgical channel; 120 - Opening; 130 - First end; 140 - Second end; 150 - Conical guide block; 160 - First chamber; 170 - Second chamber;

[0027] 200 - Light - emitting part;

[0028] 300 - Cover plate; 310 - First handle; 320 - First through - hole;

[0029] 400 - Limiting ring; 410 - Second handle; 420 - Second through - hole. Detailed description of the specific embodiment

[0030] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0031] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0032] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise clearly and specifically defined.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] An embodiment of the present application provides an anoscope, which includes an anoscope main body 100 and an illumination assembly.

[0036] As Figure 1 and Figure 4 shown, the anoscope main body 100 is a sleeve-shaped structure with an opening 120 at one end. Exemplarily, during use, the anoscope main body 100 can be inserted into the rectum from the patient's anus.

[0037] The inside of the anoscope main body 100 is hollow, and a surgical channel 110 is provided on the side wall of the anoscope main body 100, facilitating surgical instruments to operate on the diseased part through the surgical channel 110. The surgical channel 110 provided on the side wall of the anoscope main body 100 facilitates the passage of surgical instruments, enabling the doctor to select appropriate instruments for operation according to the surgical needs. This flexibility improves the success rate of the surgery and the treatment effect of the patient.

[0038] Exemplarily, the surgical channel 110 is a rectangular through-hole. In some other embodiments, the surgical channel 110 is a circular through-hole. In some other embodiments, the surgical channel 110 is an oval through-hole.

[0039] As Figure 2As shown, the lighting assembly includes a plurality of light-emitting elements 200, and the plurality of light-emitting elements 200 are evenly distributed on the inner wall of the speculum body 100. Exemplarily, five light-emitting elements 200 are provided. In another embodiment, ten light-emitting elements 200 are provided. In some other embodiments, twenty light-emitting elements 200 are provided.

[0040] The plurality of light-emitting elements 200 are evenly distributed on the inner wall of the speculum body 100, and can illuminate the inner wall of the rectum in multiple directions. This not only provides a good surgical field of view for the doctor, but also makes the surgical process more clearly visible, thereby improving the surgical efficiency and surgical safety.

[0041] Exemplarily, the light-emitting element 200 includes but is not limited to: light-emitting diodes, organic light-emitting diodes, laser diodes, neon lights or fluorescent lights, etc.

[0042] The speculum body 100 is made of a transparent material; Exemplarily, the transparent materials for making the speculum body 100 include but are not limited to: plastics (such as polyvinyl chloride, polycarbonate, etc.), glass or transparent resins, etc.

[0043] The speculum body 100 is made of a transparent material, which enables the doctor to clearly observe the surgical site, and also has a certain strength and durability, ensuring the service life and safety of the speculum.

[0044] The anoscope provided by the embodiment of the present application has a speculum body 100 made of a transparent material, which can enable the doctor to better observe the inner wall of the rectum, and through the provided light-emitting elements 200, can illuminate the inner wall of the rectum in multiple directions. This not only provides a good surgical field of view for the doctor, but also makes the surgical process more clearly visible, thereby improving the surgical efficiency and surgical safety.

[0045] As Figure 1 and Figure 2 shown, in one embodiment, the anoscope further includes a cover plate 300, and the cover plate 300 is detachably arranged at the surgical channel 110 to block or open the surgical channel 110.

[0046] Exemplarily, during use, as Figure 1 shown, the cover plate 300 is installed at the surgical channel 110, and then the cover plate 300 and the speculum body 100 are inserted into the patient's rectum from the patient's anus. After the cover plate 300 and the speculum body 100 are inserted into the rectum, as Figure 2 shown, the cover plate 300 is withdrawn, the surgical channel 110 is opened, and surgical instruments can perform surgery on the patient's rectum from the surgical channel 110.

[0047] During the process of inserting the speculum body 100 and the cover plate 300 into the rectum through the patient's anus after combination, the presence of the cover plate 300 can effectively prevent the edges at the surgical channel 110 from scratching the inner wall of the patient's rectum. This is of great significance for reducing the patient's discomfort and potential complications.

[0048] By using the cover plate 300 to block the surgical channel 110 during insertion, it can be ensured that the surgical channel 110 remains closed before the speculum body 100 reaches the correct position, avoiding unnecessary tissue damage and contamination. After the speculum body 100 and the cover plate 300 are correctly inserted into the rectum, the cover plate 300 is then withdrawn to open the surgical channel 110, and this step ensures the safety and controllability of the surgical process.

[0049] The design of the cover plate 300 makes the preparation before the operation and the operation during the operation more convenient. The doctor can pre-install the cover plate 300 at the surgical channel 110, and then insert the speculum body 100 and the cover plate 300 into the rectum at one time. After that, the surgical channel 110 can be opened by a simple withdrawal action without the need for complex adjustments or repositioning.

[0050] The detachable cover plate 300 design makes the speculum more flexible. According to the specific requirements of the operation, the doctor can choose whether to use the cover plate 300 and when to open or close the surgical channel 110. This flexibility improves the versatility and practicality of the speculum.

[0051] As a detachable component, the cover plate 300 can be cleaned and disinfected separately. This helps to maintain the hygienic state of the speculum and reduce the risk of cross-infection. At the same time, if the cover plate 300 is damaged or worn, it can also be conveniently replaced to extend the service life of the speculum. Of course, the speculum body 100 and the cover plate 300 can be set as reusable instruments or disposable instruments.

[0052] As Figure 1 and Figure 2 shown, in one embodiment, a first handle 310 is fixedly arranged on the cover plate 300, and the first handle 310 is an L-shaped plate body structure.

[0053] Exemplarily, the first handle 310 includes a first plate body portion and a second plate body portion. One end of the first plate body portion is fixedly installed on the cover plate 300, and the other end of the first plate body portion is fixedly connected to one end of the second plate body portion. The included angle between the first plate body portion and the second plate body portion is 90°, but in some other embodiments, the included angle between the first plate body portion and the second plate body portion is 80°; in some other embodiments, the included angle between the first plate body portion and the second plate body portion is 70°; in some other embodiments, the included angle between the first plate body portion and the second plate body portion is 45°. Of course, the above are only examples, and the magnitude of the included angle between the first plate body portion and the second plate body portion is not limited thereto.

[0054] The L-shaped plate body structure of the first handle 310 provides a stable and easy-to-grip part for the doctor. During the process of inserting the speculum main body 100 and the cover plate 300 into the rectum after combination, the doctor can more stably control the insertion direction and depth of the speculum by holding the first handle 310, reducing the operation difficulty.

[0055] Similarly, when it is necessary to draw out the cover plate 300 to open the surgical channel 110, the doctor can also easily and accurately complete this step by holding the first handle 310, improving the convenience of the surgical operation.

[0056] By providing the first handle 310, the doctor can safely control the insertion and extraction of the cover plate 300 without directly contacting the speculum main body 100 or the surgical channel 110. This helps to reduce the risk of hand contamination and cross-infection, and at the same time reduces the potential damage to the inner wall of the patient's rectum caused by improper operation during the surgical process.

[0057] The design of the L-shaped plate body structure conforms to the ergonomic principle, enabling the doctor to maintain a comfortable gripping posture during a long surgical process, reducing hand fatigue and discomfort. This helps the doctor to maintain a focused and stable mindset, improving the success rate of the surgery and the patient's treatment experience.

[0058] As Figures 1 to 3 shown, in one embodiment, a first through hole 320 is provided at one end of the first handle 310 away from the cover plate 300. Exemplarily, the first handle 310 is fixedly provided on the cover plate 300 by means of welding, clamping, bolt connection or integral molding.

[0059] The provision of the first through-hole 320 facilitates the suspension of the first handle 310 and the cover plate 300, enabling it to be hung on a hook, bracket, or other fixing device in the operating room when the cover plate 300 is not in use. This hanging method not only saves space on the operating table but also avoids damage or contamination caused by random placement of the cover plate 300. By hanging the cover plate 300, doctors can more easily find and access the required instruments, improving the organization and management efficiency of surgical instruments. This helps reduce the surgical preparation time and ensures the smooth progress of the surgical procedure.

[0060] The setting of the first through-hole 320 takes into account the connection requirements between the speculum body 100 and other surgical tools or equipment. In some complex surgical operations, it may be necessary to connect the cover plate 300 to other instruments to achieve specific surgical goals. The first through-hole 320 provides the possibility and convenience for such connections, enabling the speculum to more flexibly adapt to different surgical scenarios and requirements.

[0061] In one embodiment, sliding grooves are provided on the inner wall at the surgical channel 110, and guide rails that are slidably engaged with the sliding grooves are provided on the cover plate 300; however, in some other embodiments, guide rails are provided on the cover plate 300, and sliding grooves that are slidably engaged with the guide rails are provided on the inner wall at the surgical channel 110.

[0062] The cooperative design of the sliding grooves and the guide rails enables the cover plate 300 to slide stably and smoothly along a predetermined trajectory within the surgical channel 110, thereby ensuring the precise positioning of the cover plate 300 when blocking or opening the surgical channel 110. Doctors can control the opening and closing of the cover plate 300 through a simple sliding action without the need for additional tools or complex operating steps, thus improving the safety of the surgery.

[0063] Moreover, the provision of sliding grooves (or guide rails) on the surgical channel 110 can provide an installation position for other surgical tools (such as a bracket or an irradiation lamp with guide rails or sliding grooves), improving the compatibility and expansion ability of the speculum body 100.

[0064] As Figure 1 and Figure 2 shown, in one embodiment, the two ends of the speculum body 100 are respectively a first end portion 130 and a second end portion 140, the opening 120 of the speculum body 100 is located on the second end portion 140, and a conical guiding block 150 is fixedly provided on the first end portion 130.

[0065] Exemplarily, in some other embodiments, the top of the conical guiding block 150 is rounded to prevent scratching the inner wall of the rectum.

[0066] The outer shape of the conical guiding block 150 is conical, with a wider bottom and a narrower top. When the speculum main body 100 is inserted into the patient's body, the conical guiding block 150 can gradually guide the speculum main body 100 to enter, reducing the sudden impact and friction on the patient's body cavity, thereby improving the smoothness of insertion. A smooth insertion process helps to reduce the discomfort and pain of the patient, and improves the comfort of the operation and the acceptance of the patient. The conical guiding block 150 not only helps with the insertion of the speculum, but also provides a certain guiding function during the insertion into the rectum, helping the doctor to position and operate more accurately.

[0067] The contact area between the conical guiding block 150 and the inner wall of the body cavity is relatively large, which helps to enhance the stability of the speculum in the body and prevent displacement due to external forces during the operation. A stable structural design helps the doctor to focus more on the operation itself during the operation without worrying about the stability of the speculum, thereby improving the safety and success rate of the operation.

[0068] As Figure 2 and Figure 4 shown, in one embodiment, the speculum main body 100 has a cylindrical first chamber 160 inside, and a second chamber 170 is provided in the conical guiding block 150. The second chamber 170 is conical, and the large-diameter end of the second chamber 170 is connected to the first chamber 160.

[0069] The waste generated during the operation can enter the second chamber 170 through the surgical channel 110. The second chamber 170 can serve as a waste collection area and can store various wastes generated during the operation, such as human tissue fragments, body fluids, blood, and surgical consumables that may be used. This design avoids the scattering and accumulation of waste in the surgical area, keeping the surgical field clear and the surgical area clean. And it can prevent various wastes or surgical instruments from entering the deep part of the patient's rectum, causing infection or other dangerous situations, improving the safety of the operation.

[0070] After the operation, the doctor can conveniently remove and process the collected waste through the design of the speculum main body 100 and the conical guiding block 150, thereby simplifying the cleaning steps after the operation and improving the operation efficiency. Without having to interrupt the operation frequently to clean up the waste during the operation, the doctor can focus more on the operation itself, improving the continuity and efficiency of the operation.

[0071] Therefore, setting the first chamber 160 and the second chamber 170 brings significant beneficial effects in effectively collecting surgical waste, optimizing the surgical process, enhancing the rationality of the structural design, and improving the patient experience. These effects together improve the overall performance of the anoscope and the surgical effect.

[0072] As Figure 1 and Figure 2As shown, in one embodiment, a limiting ring 400 is provided on the end surface at the opening 120 of the speculum body 100, and the plane where the outer wall of the limiting ring 400 is located forms an angle with the axis of the speculum body 100. Exemplarily, after the speculum body 100 is inserted into the rectum, the outer wall of the limiting ring 400 will contact the area around the patient's anus. The angle between the limiting ring 400 and the axis of the speculum body 100 enables the limiting ring 400 to form a more stable contact surface with the surrounding tissues when inserted into the body. This design enhances the stability of the speculum in the body and prevents the speculum from shifting or falling off during the operation.

[0073] Exemplarily, the angle between the plane where the outer wall of the limiting ring 400 is located and the axis of the speculum body 100 is α, where α = 15°. In some other embodiments, α = 10°. In some other embodiments, α = 20°. Of course, the above are only examples, and the value of α is not limited thereto.

[0074] By limiting the insertion depth of the speculum, the limiting ring 400 helps to reduce accidental injuries to the patient caused by improper operation and protects the safety of the patient.

[0075] As a part of the speculum body 100, the limiting ring 400 not only provides a limiting function but also enhances the overall structural strength of the speculum. During the operation, the speculum needs to withstand certain external forces and pressures, and the design of the limiting ring 400 helps to disperse these forces and protects the speculum body 100 from damage.

[0076] As Figure 1 and Figure 2 shown, in one embodiment, a second handle 410 is provided on the limiting ring 400, and a second through hole 420 is fixedly provided at one end of the second handle 410 far from the limiting ring 400.

[0077] Exemplarily, the second handle 410 is fixedly provided on the limiting ring 400 by means of welding, clamping, bolt connection or integral molding.

[0078] Through the second through hole 420, ropes, hooks or other auxiliary tools can be conveniently connected, so as to realize further adjustment or fixation of the mechanical structure. This design increases the flexibility of the mechanical structure and enables it to adapt to different usage scenarios and requirements.

[0079] When the mechanical structure is subjected to external forces, the second handle 410 and the second through hole 420 thereon can serve as additional support points or fixing points to enhance the stability of the entire structure and prevent deformation or damage caused by external forces.

[0080] The provision of the second through-hole 420 facilitates the suspension of the speculum body, enabling it to be hung on a hook, bracket, or other fixing device in the operating room when the speculum body is not in use. This suspension method not only saves space on the operating table but also avoids damage or contamination to the second through-hole 420 caused by random placement. By hanging the speculum, doctors can more easily find and access the required instruments, improving the organization and management efficiency of surgical instruments. This helps reduce the surgical preparation time and ensures the smooth progress of the surgical procedure.

[0081] As Figure 1 and Figure 2 shown, in one embodiment, there are more than two second handles 410, and the more than two second handles 410 are evenly distributed circumferentially around the axis of the speculum body 100 on the limiting ring 400.

[0082] The evenly distributed design of the second handles 410 allows the operator to apply force more evenly during use, avoiding instability or deviation caused by excessive single-point force. This distribution method improves the overall structural stability, making the operation more precise and controllable. It also provides the operator with more choices and flexibility, allowing them to choose the most comfortable gripping method and position according to personal habits and operating requirements. At the same time, the evenly distributed design also disperses the hand pressure and reduces the fatigue feeling during long-term use.

[0083] When the operator applies force through the handles, since the handles are evenly distributed around the speculum body 100, this force can be transmitted more evenly to the speculum body 100, reducing distortion or offset caused by uneven force, thereby improving the safety and efficiency of the operation.

[0084] In one embodiment, the lighting assembly further includes an adjustment switch, which is electrically connected to the light-emitting component, and the adjustment switch is used to control the on / off and brightness of the light-emitting component. Exemplarily, the adjustment switch is fixedly arranged on the inner wall of the speculum body 100 by means of gluing, snap connection, bolt connection, etc.

[0085] In all the examples shown and described here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0086] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0087] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. An anoscope, characterized in that, Comprising: A speculum body (100), made of a transparent material, the speculum body (100) being a sleeve-shaped structure with an opening (120) at one end, and a surgical channel (110) being provided on the side wall of the speculum body (100); A lighting assembly, the lighting assembly including a plurality of light-emitting elements (200), and the plurality of light-emitting elements (200) being evenly distributed on the inner wall of the speculum body (100).

2. The anoscope according to claim 1, characterized in that, Further comprising: A cover plate (300), the cover plate (300) being detachably provided at the surgical channel (110) to block or open the surgical channel (110).

3. The anoscope according to claim 2, characterized in that, A first handle (310) is fixedly provided on the cover plate (300), and the first handle (310) is an L-shaped plate body structure.

4. The anoscope according to claim 3, characterized in that, A first through hole (320) is provided at one end of the first handle (310) away from the cover plate (300).

5. The anoscope according to claim 2, characterized in that, A sliding groove is provided on the inner wall at the surgical channel (110), and a guide rail slidably engaged with the sliding groove is provided on the cover plate (300); Or, a sliding groove is provided on the cover plate (300), and a guide rail slidably engaged with the sliding groove is provided on the inner wall at the surgical channel (110).

6. The anoscope according to claim 1, characterized in that, The two ends of the speculum body (100) are respectively a first end portion (130) and a second end portion (140), the opening (120) of the speculum body (100) is located on the second end portion (140), and a conical guide block (150) is fixedly provided on the first end portion (130).

7. The anoscope according to claim 6, characterized in that, A cylindrical first chamber (160) is provided inside the speculum body (100), a second chamber (170) is provided inside the conical guide block (150), the second chamber (170) is conical, and the large-diameter end of the second chamber (170) communicates with the first chamber (160).

8. The anoscope according to any one of claims 1 to 7, characterized in that, A limiting ring (400) is provided on the end face at the opening (120) of the speculum body (100), and the plane where the outer wall of the limiting ring (400) is located forms an angle with the axis of the speculum body (100).

9. The anoscope according to claim 8, wherein, A second handle (410) is provided on the limiting ring (400), and a second through hole (420) is fixedly provided at one end of the second handle (410) away from the limiting ring (400).

10. The anoscope according to claim 9, characterized in that, Two or more second handles (410) are provided, and the two or more second handles (410) are evenly distributed around the axis of the speculum body (100) on the limiting ring (400); And / or, the lighting assembly further includes an adjustment switch, the adjustment switch being electrically connected to the light-emitting element, and the adjustment switch being used to control the on / off and brightness of the light-emitting element.

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